﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;

namespace HUAWEI
{
    public abstract class cl_0423_HUAWEI
    {
        protected ArrayList customers = new ArrayList();

        public cl_0423_Customers cl_0423_Customers
        {
            get => default;
            set
            {
            }
        }

        public void attach(cl_0423_Customers customer)
        {
            customers.Add(customer);
        }

        public void detach(cl_0423_Customers customer)
        {
            customers.Remove(customer);
        }

        public abstract void Delivery();
        
    }
}